I guess the other question is, are you comparing FFXV and Tomb Raider like-for-like -- in other words, as PS4 games -- or are you granting Tomb Raider the advantages provided by higher-quality PC settings? The PS4 footage I found of Tomb Raider seemed to demonstrate the material shaders issues I'd mentioned even more than the outdoor scenes, even if non-orange light was less likely to cause (literally) glaring conservation of energy issues.
And I think that scale is a bigger issue than you give it credit for when the gap is as big as it is between FFXV and Tomb Raider. FFXV needs to account for 4-5 Player Character equivalent models at all times instead of one, each with a pretty ridiculous animation load. Thanks to the random appearance of magitek dropships and daemons, it also needs to be able to handle the accumulation of something like 20 different enemies of multiple different types (each with their own unique and intricately detailed animations) in a single encounter. Thanks to the semi-random nature of summons, it needs to be able to handle the appearance of 200ft tall gods and the ridiculous camera angles they require under most circumstances. Thanks to Noct's abilities, it needs to be able to let you fight 100ft in the air, instantly appear hundreds of feet away looking in the opposite direction, and throw ridiculously huge magic effects into an already-hectic fray.
In their current states, Foundation would definitely be the engine of choice if one intended to make a game of a similar scale to Tomb Raider. But I think it would be foolish to abandon Luminous' much greater ambitions just because it hasn't been refined to the same level as Foundation, especially since Luminous seems to include some forward-looking features designed to be used on more powerful hardware than what we have today. I don't think anyone else has made a real-time demo that even comes close to touching Witch 2.0.
For the record, I think FFXV handily stomps the PS4 version of Witcher 3 in terms of graphics (I
hate that game's twilight lighting in the screenshots I've seen, it's so weird and unnatural >_>; ) and I don't think there's
any chance that a few more weeks will make
this into a FFXV competitor with regards to graphics. It's also worth pointing out that Dissidia arcade has similar issues to KH0.2 (i.e. poly-starved models and weird material shaders) on slightly-more-powerful-than-PS4 hardware, and even FFVIIR showed signs of following in their footsteps.